<template>
  <div class="app-container">
    <el-button type="primary" @click="exportData"><i class="el-icon-edit-outline"/> 导出excel</el-button>
    <el-button type="primary" @click="importData"><i class="el-icon-folder-add"/> excel导入</el-button>
    <!--lazy是懒加载，只有点击后才加载层级数据-->
    <el-table
        :data="list"
        style="width: 100%"
        row-key="id"
        border
        lazy
        :load="getChildrens"
        :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
      <el-table-column label="名称" width="230" align="left">
        <template slot-scope="scope">
          <span>{{ scope.row.name }}</span>
        </template>
      </el-table-column>

      <el-table-column label="编码" width="220">
        <template slot-scope="{row}">
          {{ row.dictCode }}
        </template>
      </el-table-column>
      <el-table-column label="值" width="230" align="left">
        <template slot-scope="scope">
          <span>{{ scope.row.value }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center">
        <template slot-scope="scope">
          <span>{{ scope.row.createTime }}</span>
        </template>
      </el-table-column>
    </el-table>

    <el-dialog title="导入" :visible.sync="dialogImportVisible" width="480px">
      <el-form label-position="right" label-width="170px">
        <el-form-item label="文件">
          <el-upload
              :multiple="false"
              :on-success="onUploadSuccess"
              :action="'http://localhost:8202/admin/cmn/dict/importData'"
              class="upload-demo">
            <el-button size="small" type="primary">点击上传</el-button>
            <div slot="tip" class="el-icon-upload2">只能上传excel文件，且不超过500kb</div>
          </el-upload>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogImportVisible = false">
          取消
        </el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {dictList,exportDict} from "../../network/dict"
  export default {
    name: "TreeList",
    data() {
      return{
        list:[],
        dialogImportVisible:false //设置弹框是否弹出
      }
    },
    created() {
      this.getDictList(1)
    },
    methods: {
      async getDictList(id){
        const {data:res}=await dictList(id)
        if(res.code!==200) return this.$message.error("数据获取失败")
        this.list=res.data
      },
      //查询下面层级的内容
      getChildrens(tree, treeNode, resolve) {
        dictList(tree.id).then(response => {
          resolve(response.data.data)
        })
      },
      exportData() {
        //exportDict();
        window.location.href = 'http://localhost:8202/admin/cmn/dict/exportData'
      },
      importData(){
        this.dialogImportVisible=true
      },
      //excel上传成功后调用的方法
      onUploadSuccess() {
        this.dialogImportVisible=false
        this.$message.success("上传成功")
        this.getDictList(1)
      }
    }
  }
</script>

<style scoped>

</style>